Abstract: A hose trolley includes a support unit (3) and a connection unit (4) mounted on the support unit. The support unit includes a spool (30) and a hose (31) wound around the spool. The connection unit includes a control box (40) mounted on the support unit, a connecting pipe (41) connected between the hose and the control box, and at least one fitting (42) connected to the control box. Thus, the connection unit includes a plurality of fittings connected to a plurality of pneumatic tools so that the hose trolley can co-operate with a plurality of pneumatic tools. In addition, the control box of the connection unit can be operated to regulate the air pressure so that the operator can directly regulate the air pressure without having to move to the air compressor to regulate the air pressure.